dlls/avifil32/wavfile.c

   1 /*
   2  * Copyright 2002 Michael Günnewig
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #define COM_NO_WINDOWS_H
  20 #include <assert.h>
  21 #include <stdarg.h>
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "wingdi.h"
  26 #include "winuser.h"
  27 #include "winnls.h"
  28 #include "winerror.h"
  29 #include "windowsx.h"
  30 #include "mmsystem.h"
  31 #include "vfw.h"
  32 #include "msacm.h"
  33
  34 #include "avifile_private.h"
  35 #include "extrachunk.h"
  36
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(avifile);
  40
  41 /***********************************************************************/
  42
  43 #define formtypeWAVE    mmioFOURCC('W','A','V','E')
  44 #define ckidWAVEFORMAT  mmioFOURCC('f','m','t',' ')
  45 #define ckidWAVEFACT    mmioFOURCC('f','a','c','t')
  46 #define ckidWAVEDATA    mmioFOURCC('d','a','t','a')
  47
  48 /***********************************************************************/
  49
  50 #define ENDIAN_SWAPWORD(x)  ((((x) >> 8) & 0xFF) | (((x) & 0xFF) << 8))
  51 #define ENDIAN_SWAPDWORD(x) (ENDIAN_SWAPWORD((x >> 16) & 0xFFFF) | \
  52                              ENDIAN_SWAPWORD(x & 0xFFFF) << 16)
  53
  54 #ifdef WORDS_BIGENDIAN
  55 #define BE2H_WORD(x)  (x)
  56 #define BE2H_DWORD(x) (x)
  57 #define LE2H_WORD(x)  ENDIAN_SWAPWORD(x)
  58 #define LE2H_DWORD(x) ENDIAN_SWAPDWORD(x)
  59 #else
  60 #define BE2H_WORD(x)  ENDIAN_SWAPWORD(x)
  61 #define BE2H_DWORD(x) ENDIAN_SWAPDWORD(x)
  62 #define LE2H_WORD(x)  (x)
  63 #define LE2H_DWORD(x) (x)
  64 #endif
  65
  66 typedef struct {
  67   FOURCC  fccType;
  68   DWORD   offset;
  69   DWORD   size;
  70   INT     encoding;
  71   DWORD   sampleRate;
  72   DWORD   channels;
  73 } SUNAUDIOHEADER;
  74
  75 #define AU_ENCODING_ULAW_8                 1
  76 #define AU_ENCODING_PCM_8                  2
  77 #define AU_ENCODING_PCM_16                 3
  78 #define AU_ENCODING_PCM_24                 4
  79 #define AU_ENCODING_PCM_32                 5
  80 #define AU_ENCODING_FLOAT                  6
  81 #define AU_ENCODING_DOUBLE                 7
  82 #define AU_ENCODING_ADPCM_G721_32         23
  83 #define AU_ENCODING_ADPCM_G722            24
  84 #define AU_ENCODING_ADPCM_G723_24         25
  85 #define AU_ENCODING_ADPCM_G723_5          26
  86 #define AU_ENCODING_ALAW_8                27
  87
  88 /***********************************************************************/
  89
  90 static HRESULT WINAPI IAVIFile_fnQueryInterface(IAVIFile* iface,REFIID refiid,LPVOID *obj);
  91 static ULONG   WINAPI IAVIFile_fnAddRef(IAVIFile* iface);
  92 static ULONG   WINAPI IAVIFile_fnRelease(IAVIFile* iface);
  93 static HRESULT WINAPI IAVIFile_fnInfo(IAVIFile*iface,AVIFILEINFOW*afi,LONG size);
  94 static HRESULT WINAPI IAVIFile_fnGetStream(IAVIFile*iface,PAVISTREAM*avis,DWORD fccType,LONG lParam);
  95 static HRESULT WINAPI IAVIFile_fnCreateStream(IAVIFile*iface,PAVISTREAM*avis,AVISTREAMINFOW*asi);
  96 static HRESULT WINAPI IAVIFile_fnWriteData(IAVIFile*iface,DWORD ckid,LPVOID lpData,LONG size);
  97 static HRESULT WINAPI IAVIFile_fnReadData(IAVIFile*iface,DWORD ckid,LPVOID lpData,LONG *size);
  98 static HRESULT WINAPI IAVIFile_fnEndRecord(IAVIFile*iface);
  99 static HRESULT WINAPI IAVIFile_fnDeleteStream(IAVIFile*iface,DWORD fccType,LONG lParam);
 100
 101 struct ICOM_VTABLE(IAVIFile) iwavft = {
 102   ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 103   IAVIFile_fnQueryInterface,
 104   IAVIFile_fnAddRef,
 105   IAVIFile_fnRelease,
 106   IAVIFile_fnInfo,
 107   IAVIFile_fnGetStream,
 108   IAVIFile_fnCreateStream,
 109   IAVIFile_fnWriteData,
 110   IAVIFile_fnReadData,
 111   IAVIFile_fnEndRecord,
 112   IAVIFile_fnDeleteStream
 113 };
 114
 115 static HRESULT WINAPI IPersistFile_fnQueryInterface(IPersistFile*iface,REFIID refiid,LPVOID*obj);
 116 static ULONG   WINAPI IPersistFile_fnAddRef(IPersistFile*iface);
 117 static ULONG   WINAPI IPersistFile_fnRelease(IPersistFile*iface);
 118 static HRESULT WINAPI IPersistFile_fnGetClassID(IPersistFile*iface,CLSID*pClassID);
 119 static HRESULT WINAPI IPersistFile_fnIsDirty(IPersistFile*iface);
 120 static HRESULT WINAPI IPersistFile_fnLoad(IPersistFile*iface,LPCOLESTR pszFileName,DWORD dwMode);
 121 static HRESULT WINAPI IPersistFile_fnSave(IPersistFile*iface,LPCOLESTR pszFileName,BOOL fRemember);
 122 static HRESULT WINAPI IPersistFile_fnSaveCompleted(IPersistFile*iface,LPCOLESTR pszFileName);
 123 static HRESULT WINAPI IPersistFile_fnGetCurFile(IPersistFile*iface,LPOLESTR*ppszFileName);
 124
 125 struct ICOM_VTABLE(IPersistFile) iwavpft = {
 126   ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 127   IPersistFile_fnQueryInterface,
 128   IPersistFile_fnAddRef,
 129   IPersistFile_fnRelease,
 130   IPersistFile_fnGetClassID,
 131   IPersistFile_fnIsDirty,
 132   IPersistFile_fnLoad,
 133   IPersistFile_fnSave,
 134   IPersistFile_fnSaveCompleted,
 135   IPersistFile_fnGetCurFile
 136 };
 137
 138 static HRESULT WINAPI IAVIStream_fnQueryInterface(IAVIStream*iface,REFIID refiid,LPVOID *obj);
 139 static ULONG   WINAPI IAVIStream_fnAddRef(IAVIStream*iface);
 140 static ULONG   WINAPI IAVIStream_fnRelease(IAVIStream* iface);
 141 static HRESULT WINAPI IAVIStream_fnCreate(IAVIStream*iface,LPARAM lParam1,LPARAM lParam2);
 142 static HRESULT WINAPI IAVIStream_fnInfo(IAVIStream*iface,AVISTREAMINFOW *psi,LONG size);
 143 static LONG    WINAPI IAVIStream_fnFindSample(IAVIStream*iface,LONG pos,LONG flags);
 144 static HRESULT WINAPI IAVIStream_fnReadFormat(IAVIStream*iface,LONG pos,LPVOID format,LONG *formatsize);
 145 static HRESULT WINAPI IAVIStream_fnSetFormat(IAVIStream*iface,LONG pos,LPVOID format,LONG formatsize);
 146 static HRESULT WINAPI IAVIStream_fnRead(IAVIStream*iface,LONG start,LONG samples,LPVOID buffer,LONG buffersize,LONG *bytesread,LONG *samplesread);
 147 static HRESULT WINAPI IAVIStream_fnWrite(IAVIStream*iface,LONG start,LONG samples,LPVOID buffer,LONG buffersize,DWORD flags,LONG *sampwritten,LONG *byteswritten);
 148 static HRESULT WINAPI IAVIStream_fnDelete(IAVIStream*iface,LONG start,LONG samples);
 149 static HRESULT WINAPI IAVIStream_fnReadData(IAVIStream*iface,DWORD fcc,LPVOID lp,LONG *lpread);
 150 static HRESULT WINAPI IAVIStream_fnWriteData(IAVIStream*iface,DWORD fcc,LPVOID lp,LONG size);
 151 static HRESULT WINAPI IAVIStream_fnSetInfo(IAVIStream*iface,AVISTREAMINFOW*info,LONG infolen);
 152
 153 struct ICOM_VTABLE(IAVIStream) iwavst = {
 154   ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 155   IAVIStream_fnQueryInterface,
 156   IAVIStream_fnAddRef,
 157   IAVIStream_fnRelease,
 158   IAVIStream_fnCreate,
 159   IAVIStream_fnInfo,
 160   IAVIStream_fnFindSample,
 161   IAVIStream_fnReadFormat,
 162   IAVIStream_fnSetFormat,
 163   IAVIStream_fnRead,
 164   IAVIStream_fnWrite,
 165   IAVIStream_fnDelete,
 166   IAVIStream_fnReadData,
 167   IAVIStream_fnWriteData,
 168   IAVIStream_fnSetInfo
 169 };
 170
 171 typedef struct _IAVIFileImpl IAVIFileImpl;
 172
 173 typedef struct _IPersistFileImpl {
 174   /* IUnknown stuff */
 175   ICOM_VFIELD(IPersistFile);
 176
 177   /* IPersistFile stuff */
 178   IAVIFileImpl     *paf;
 179 } IPersistFileImpl;
 180
 181 typedef struct _IAVIStreamImpl {
 182   /* IUnknown stuff */
 183   ICOM_VFIELD(IAVIStream);
 184
 185   /* IAVIStream stuff */
 186   IAVIFileImpl     *paf;
 187 } IAVIStreamImpl;
 188
 189 struct _IAVIFileImpl {
 190   /* IUnknown stuff */
 191   ICOM_VFIELD(IAVIFile);
 192   DWORD             ref;
 193
 194   /* IAVIFile, IAVIStream stuff... */
 195   IPersistFileImpl  iPersistFile;
 196   IAVIStreamImpl    iAVIStream;
 197
 198   AVIFILEINFOW      fInfo;
 199   AVISTREAMINFOW    sInfo;
 200
 201   LPWAVEFORMATEX    lpFormat;
 202   LONG              cbFormat;
 203
 204   MMCKINFO          ckData;
 205
 206   EXTRACHUNKS       extra;
 207
 208   /* IPersistFile stuff ... */
 209   HMMIO             hmmio;
 210   LPWSTR            szFileName;
 211   UINT              uMode;
 212   BOOL              fDirty;
 213 };
 214
 215 /***********************************************************************/
 216
 217 static HRESULT AVIFILE_LoadFile(IAVIFileImpl *This);
 218 static HRESULT AVIFILE_LoadSunFile(IAVIFileImpl *This);
 219 static HRESULT AVIFILE_SaveFile(IAVIFileImpl *This);
 220
 221 HRESULT AVIFILE_CreateWAVFile(REFIID riid, LPVOID *ppv)
 222 {
 223   IAVIFileImpl *pfile;
 224   HRESULT       hr;
 225
 226   assert(riid != NULL && ppv != NULL);
 227
 228   *ppv = NULL;
 229
 230   pfile = (IAVIFileImpl*)LocalAlloc(LPTR, sizeof(IAVIFileImpl));
 231   if (pfile == NULL)
 232     return AVIERR_MEMORY;
 233
 234   pfile->lpVtbl                = &iwavft;
 235   pfile->iPersistFile.lpVtbl   = &iwavpft;
 236   pfile->iAVIStream.lpVtbl     = &iwavst;
 237   pfile->ref = 0;
 238   pfile->iPersistFile.paf = pfile;
 239   pfile->iAVIStream.paf   = pfile;
 240
 241   hr = IUnknown_QueryInterface((IUnknown*)pfile, riid, ppv);
 242   if (FAILED(hr))
 243     LocalFree((HLOCAL)pfile);
 244
 245   return hr;
 246 }
 247
 248 static HRESULT WINAPI IAVIFile_fnQueryInterface(IAVIFile *iface, REFIID refiid,
 249                                                 LPVOID *obj)
 250 {
 251   ICOM_THIS(IAVIFileImpl,iface);
 252
 253   TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);
 254
 255   if (IsEqualGUID(&IID_IUnknown, refiid) ||
 256       IsEqualGUID(&IID_IAVIFile, refiid)) {
 257     *obj = iface;
 258     return S_OK;
 259   } else if (This->fInfo.dwStreams == 1 &&
 260              IsEqualGUID(&IID_IAVIStream, refiid)) {
 261     *obj = &This->iAVIStream;
 262     return S_OK;
 263   } else if (IsEqualGUID(&IID_IPersistFile, refiid)) {
 264     *obj = &This->iPersistFile;
 265     return S_OK;
 266   }
 267
 268   return OLE_E_ENUM_NOMORE;
 269 }
 270
 271 static ULONG WINAPI IAVIFile_fnAddRef(IAVIFile *iface)
 272 {
 273   ICOM_THIS(IAVIFileImpl,iface);
 274
 275   TRACE("(%p)\n",iface);
 276
 277   return ++(This->ref);
 278 }
 279
 280 static ULONG WINAPI IAVIFile_fnRelease(IAVIFile *iface)
 281 {
 282   ICOM_THIS(IAVIFileImpl,iface);
 283
 284   TRACE("(%p)\n",iface);
 285
 286   if (!--(This->ref)) {
 287     if (This->fDirty) {
 288       /* need to write headers to file */
 289       AVIFILE_SaveFile(This);
 290     }
 291
 292     if (This->lpFormat != NULL) {
 293       GlobalFreePtr(This->lpFormat);
 294       This->lpFormat = NULL;
 295       This->cbFormat = 0;
 296     }
 297     if (This->extra.lp != NULL) {
 298       GlobalFreePtr(This->extra.lp);
 299       This->extra.lp = NULL;
 300       This->extra.cb = 0;
 301     }
 302     if (This->szFileName != NULL) {
 303       LocalFree((HLOCAL)This->szFileName);
 304       This->szFileName = NULL;
 305     }
 306     if (This->hmmio != NULL) {
 307       mmioClose(This->hmmio, 0);
 308       This->hmmio = NULL;
 309     }
 310
 311     LocalFree((HLOCAL)This);
 312     return 0;
 313   }
 314   return This->ref;
 315 }
 316
 317 static HRESULT WINAPI IAVIFile_fnInfo(IAVIFile *iface, LPAVIFILEINFOW afi,
 318                                       LONG size)
 319 {
 320   ICOM_THIS(IAVIFileImpl,iface);
 321
 322   TRACE("(%p,%p,%ld)\n",iface,afi,size);
 323
 324   if (afi == NULL)
 325     return AVIERR_BADPARAM;
 326   if (size < 0)
 327     return AVIERR_BADSIZE;
 328
 329   /* update file info */
 330   This->fInfo.dwFlags = 0;
 331   This->fInfo.dwCaps  = AVIFILECAPS_CANREAD|AVIFILECAPS_CANWRITE;
 332   if (This->lpFormat != NULL) {
 333     assert(This->sInfo.dwScale != 0);
 334
 335     This->fInfo.dwStreams             = 1;
 336     This->fInfo.dwScale               = This->sInfo.dwScale;
 337     This->fInfo.dwRate                = This->sInfo.dwRate;
 338     This->fInfo.dwLength              = This->sInfo.dwLength;
 339     This->fInfo.dwSuggestedBufferSize = This->ckData.cksize;
 340     This->fInfo.dwMaxBytesPerSec =
 341       MulDiv(This->sInfo.dwSampleSize,This->sInfo.dwRate,This->sInfo.dwScale);
 342   }
 343
 344   memcpy(afi, &This->fInfo, min((DWORD)size, sizeof(This->fInfo)));
 345
 346   if ((DWORD)size < sizeof(This->fInfo))
 347     return AVIERR_BUFFERTOOSMALL;
 348   return AVIERR_OK;
 349 }
 350
 351 static HRESULT WINAPI IAVIFile_fnGetStream(IAVIFile *iface, PAVISTREAM *avis,
 352                                            DWORD fccType, LONG lParam)
 353 {
 354   ICOM_THIS(IAVIFileImpl,iface);
 355
 356   TRACE("(%p,%p,0x%08lX,%ld)\n", iface, avis, fccType, lParam);
 357
 358   /* check parameter */
 359   if (avis == NULL)
 360     return AVIERR_BADPARAM;
 361
 362   *avis = NULL;
 363
 364   /* Does our stream exists? */
 365   if (lParam != 0 || This->fInfo.dwStreams == 0)
 366     return AVIERR_NODATA;
 367   if (fccType != 0 && fccType != streamtypeAUDIO)
 368     return AVIERR_NODATA;
 369
 370   *avis = (PAVISTREAM)&This->iAVIStream;
 371   IAVIFile_AddRef(iface);
 372
 373   return AVIERR_OK;
 374 }
 375
 376 static HRESULT WINAPI IAVIFile_fnCreateStream(IAVIFile *iface,PAVISTREAM *avis,
 377                                               LPAVISTREAMINFOW asi)
 378 {
 379   ICOM_THIS(IAVIFileImpl,iface);
 380
 381   TRACE("(%p,%p,%p)\n", iface, avis, asi);
 382
 383   /* check parameters */
 384   if (avis == NULL || asi == NULL)
 385     return AVIERR_BADPARAM;
 386
 387   *avis = NULL;
 388
 389   /* We only support one audio stream */
 390   if (This->fInfo.dwStreams != 0 || This->lpFormat != NULL)
 391     return AVIERR_UNSUPPORTED;
 392   if (asi->fccType != streamtypeAUDIO)
 393     return AVIERR_UNSUPPORTED;
 394
 395   /* Does the user have write permission? */
 396   if ((This->uMode & MMIO_RWMODE) == 0)
 397     return AVIERR_READONLY;
 398
 399   This->cbFormat = 0;
 400   This->lpFormat = NULL;
 401
 402   memcpy(&This->sInfo, asi, sizeof(This->sInfo));
 403
 404   /* make sure streaminfo if okay for us */
 405   This->sInfo.fccHandler          = 0;
 406   This->sInfo.dwFlags             = 0;
 407   This->sInfo.dwCaps              = AVIFILECAPS_CANREAD|AVIFILECAPS_CANWRITE;
 408   This->sInfo.dwStart             = 0;
 409   This->sInfo.dwInitialFrames     = 0;
 410   This->sInfo.dwFormatChangeCount = 0;
 411   memset(&This->sInfo.rcFrame, 0, sizeof(This->sInfo.rcFrame));
 412
 413   This->fInfo.dwStreams = 1;
 414   This->fInfo.dwScale   = This->sInfo.dwScale;
 415   This->fInfo.dwRate    = This->sInfo.dwRate;
 416   This->fInfo.dwLength  = This->sInfo.dwLength;
 417
 418   This->ckData.dwDataOffset = 0;
 419   This->ckData.cksize       = 0;
 420
 421   *avis = (PAVISTREAM)&This->iAVIStream;
 422   IAVIFile_AddRef(iface);
 423
 424   return AVIERR_OK;
 425 }
 426
 427 static HRESULT WINAPI IAVIFile_fnWriteData(IAVIFile *iface, DWORD ckid,
 428                                            LPVOID lpData, LONG size)
 429 {
 430   ICOM_THIS(IAVIFileImpl,iface);
 431
 432   TRACE("(%p,0x%08lX,%p,%ld)\n", iface, ckid, lpData, size);
 433
 434   /* check parameters */
 435   if (lpData == NULL)
 436     return AVIERR_BADPARAM;
 437   if (size < 0)
 438     return AVIERR_BADSIZE;
 439
 440   /* Do we have write permission? */
 441   if ((This->uMode & MMIO_RWMODE) == 0)
 442     return AVIERR_READONLY;
 443
 444   This->fDirty = TRUE;
 445
 446   return WriteExtraChunk(&This->extra, ckid, lpData, size);
 447 }
 448
 449 static HRESULT WINAPI IAVIFile_fnReadData(IAVIFile *iface, DWORD ckid,
 450                                           LPVOID lpData, LONG *size)
 451 {
 452   ICOM_THIS(IAVIFileImpl,iface);
 453
 454   TRACE("(%p,0x%08lX,%p,%p)\n", iface, ckid, lpData, size);
 455
 456   return ReadExtraChunk(&This->extra, ckid, lpData, size);
 457 }
 458
 459 static HRESULT WINAPI IAVIFile_fnEndRecord(IAVIFile *iface)
 460 {
 461   TRACE("(%p)\n",iface);
 462
 463   /* This is only needed for interleaved files.
 464    * We have only one stream, which can't be interleaved.
 465    */
 466   return AVIERR_OK;
 467 }
 468
 469 static HRESULT WINAPI IAVIFile_fnDeleteStream(IAVIFile *iface, DWORD fccType,
 470                                               LONG lParam)
 471 {
 472   ICOM_THIS(IAVIFileImpl,iface);
 473
 474   TRACE("(%p,0x%08lX,%ld)\n", iface, fccType, lParam);
 475
 476   /* check parameter */
 477   if (lParam < 0)
 478     return AVIERR_BADPARAM;
 479
 480   /* Have we our audio stream? */
 481   if (lParam != 0 || This->fInfo.dwStreams == 0 ||
 482       (fccType != 0 && fccType != streamtypeAUDIO))
 483     return AVIERR_NODATA;
 484
 485   /* Have user write permissions? */
 486   if ((This->uMode & MMIO_RWMODE) == 0)
 487     return AVIERR_READONLY;
 488
 489   GlobalFreePtr(This->lpFormat);
 490   This->lpFormat = NULL;
 491   This->cbFormat = 0;
 492
 493   /* update infos */
 494   This->ckData.dwDataOffset = 0;
 495   This->ckData.cksize       = 0;
 496
 497   This->sInfo.dwScale   = 0;
 498   This->sInfo.dwRate    = 0;
 499   This->sInfo.dwLength  = 0;
 500   This->sInfo.dwSuggestedBufferSize = 0;
 501
 502   This->fInfo.dwStreams = 0;
 503   This->fInfo.dwEditCount++;
 504
 505   This->fDirty = TRUE;
 506
 507   return AVIERR_OK;
 508 }
 509
 510 /***********************************************************************/
 511
 512 static HRESULT WINAPI IPersistFile_fnQueryInterface(IPersistFile *iface,
 513                                                     REFIID refiid, LPVOID *obj)
 514 {
 515   ICOM_THIS(IPersistFileImpl,iface);
 516
 517   assert(This->paf != NULL);
 518
 519   return IAVIFile_QueryInterface((PAVIFILE)This->paf, refiid, obj);
 520 }
 521
 522 static ULONG   WINAPI IPersistFile_fnAddRef(IPersistFile *iface)
 523 {
 524   ICOM_THIS(IPersistFileImpl,iface);
 525
 526   assert(This->paf != NULL);
 527
 528   return IAVIFile_AddRef((PAVIFILE)This->paf);
 529 }
 530
 531 static ULONG   WINAPI IPersistFile_fnRelease(IPersistFile *iface)
 532 {
 533   ICOM_THIS(IPersistFileImpl,iface);
 534
 535   assert(This->paf != NULL);
 536
 537   return IAVIFile_Release((PAVIFILE)This->paf);
 538 }
 539
 540 static HRESULT WINAPI IPersistFile_fnGetClassID(IPersistFile *iface,
 541                                                 LPCLSID pClassID)
 542 {
 543   TRACE("(%p,%p)\n", iface, pClassID);
 544
 545   if (pClassID == NULL)
 546     return AVIERR_BADPARAM;
 547
 548   memcpy(pClassID, &CLSID_WAVFile, sizeof(CLSID_WAVFile));
 549
 550   return AVIERR_OK;
 551 }
 552
 553 static HRESULT WINAPI IPersistFile_fnIsDirty(IPersistFile *iface)
 554 {
 555   ICOM_THIS(IPersistFileImpl,iface);
 556
 557   TRACE("(%p)\n", iface);
 558
 559   assert(This->paf != NULL);
 560
 561   return (This->paf->fDirty ? S_OK : S_FALSE);
 562 }
 563
 564 static HRESULT WINAPI IPersistFile_fnLoad(IPersistFile *iface,
 565                                           LPCOLESTR pszFileName, DWORD dwMode)
 566 {
 567   IAVIFileImpl *This = ((IPersistFileImpl*)iface)->paf;
 568
 569   WCHAR wszStreamFmt[50];
 570   INT   len;
 571
 572   TRACE("(%p,%s,0x%08lX)\n", iface, debugstr_w(pszFileName), dwMode);
 573
 574   /* check parameter */
 575   if (pszFileName == NULL)
 576     return AVIERR_BADPARAM;
 577
 578   assert(This != NULL);
 579   if (This->hmmio != NULL)
 580     return AVIERR_ERROR; /* No reuse of this object for another file! */
 581
 582   /* remeber mode and name */
 583   This->uMode = dwMode;
 584
 585   len = lstrlenW(pszFileName) + 1;
 586   This->szFileName = (LPWSTR)LocalAlloc(LPTR, len * sizeof(WCHAR));
 587   if (This->szFileName == NULL)
 588     return AVIERR_MEMORY;
 589   lstrcpyW(This->szFileName, pszFileName);
 590
 591   /* try to open the file */
 592   This->hmmio = mmioOpenW(This->szFileName, NULL, MMIO_ALLOCBUF | dwMode);
 593   if (This->hmmio == NULL) {
 594     /* mmioOpenW not in native DLLs of Win9x -- try mmioOpenA */
 595     LPSTR szFileName = LocalAlloc(LPTR, len * sizeof(CHAR));
 596     if (szFileName == NULL)
 597       return AVIERR_MEMORY;
 598
 599     WideCharToMultiByte(CP_ACP, 0, This->szFileName, -1, szFileName,
 600                         len, NULL, NULL);
 601
 602     This->hmmio = mmioOpenA(szFileName, NULL, MMIO_ALLOCBUF | dwMode);
 603     LocalFree((HLOCAL)szFileName);
 604     if (This->hmmio == NULL)
 605       return AVIERR_FILEOPEN;
 606   }
 607
 608   memset(& This->fInfo, 0, sizeof(This->fInfo));
 609   memset(& This->sInfo, 0, sizeof(This->sInfo));
 610
 611   LoadStringW(AVIFILE_hModule, IDS_WAVEFILETYPE, This->fInfo.szFileType,
 612               sizeof(This->fInfo.szFileType));
 613   if (LoadStringW(AVIFILE_hModule, IDS_WAVESTREAMFORMAT,
 614                   wszStreamFmt, sizeof(wszStreamFmt)) > 0) {
 615     wsprintfW(This->sInfo.szName, wszStreamFmt,
 616               AVIFILE_BasenameW(This->szFileName));
 617   }
 618
 619   /* should we create a new file? */
 620   if (dwMode & OF_CREATE) {
 621     /* nothing more to do */
 622     return AVIERR_OK;
 623   } else
 624     return AVIFILE_LoadFile(This);
 625 }
 626
 627 static HRESULT WINAPI IPersistFile_fnSave(IPersistFile *iface,
 628                                           LPCOLESTR pszFileName,BOOL fRemember)
 629 {
 630   TRACE("(%p,%s,%d)\n", iface, debugstr_w(pszFileName), fRemember);
 631
 632   /* We write directly to disk, so nothing to do. */
 633
 634   return AVIERR_OK;
 635 }
 636
 637 static HRESULT WINAPI IPersistFile_fnSaveCompleted(IPersistFile *iface,
 638                                                    LPCOLESTR pszFileName)
 639 {
 640   TRACE("(%p,%s)\n", iface, debugstr_w(pszFileName));
 641
 642   /* We write directly to disk, so nothing to do. */
 643
 644   return AVIERR_OK;
 645 }
 646
 647 static HRESULT WINAPI IPersistFile_fnGetCurFile(IPersistFile *iface,
 648                                                 LPOLESTR *ppszFileName)
 649 {
 650   ICOM_THIS(IPersistFileImpl,iface);
 651
 652   TRACE("(%p,%p)\n", iface, ppszFileName);
 653
 654   if (ppszFileName == NULL)
 655     return AVIERR_BADPARAM;
 656
 657   *ppszFileName = NULL;
 658
 659   assert(This->paf != NULL);
 660
 661   if (This->paf->szFileName != NULL) {
 662     int len = lstrlenW(This->paf->szFileName);
 663
 664     *ppszFileName = (LPOLESTR)GlobalAllocPtr(GHND, len * sizeof(WCHAR));
 665     if (*ppszFileName == NULL)
 666       return AVIERR_MEMORY;
 667
 668     memcpy(*ppszFileName, This->paf->szFileName, len * sizeof(WCHAR));
 669   }
 670
 671   return AVIERR_OK;
 672 }
 673
 674 /***********************************************************************/
 675
 676 static HRESULT WINAPI IAVIStream_fnQueryInterface(IAVIStream *iface,
 677                                                   REFIID refiid, LPVOID *obj)
 678 {
 679   ICOM_THIS(IAVIStreamImpl,iface);
 680
 681   assert(This->paf != NULL);
 682
 683   return IAVIFile_QueryInterface((PAVIFILE)This->paf, refiid, obj);
 684 }
 685
 686 static ULONG WINAPI IAVIStream_fnAddRef(IAVIStream *iface)
 687 {
 688   ICOM_THIS(IAVIStreamImpl,iface);
 689
 690   assert(This->paf != NULL);
 691
 692   return IAVIFile_AddRef((PAVIFILE)This->paf);
 693 }
 694
 695 static ULONG WINAPI IAVIStream_fnRelease(IAVIStream* iface)
 696 {
 697   ICOM_THIS(IAVIStreamImpl,iface);
 698
 699   assert(This->paf != NULL);
 700
 701   return IAVIFile_Release((PAVIFILE)This->paf);
 702 }
 703
 704 static HRESULT WINAPI IAVIStream_fnCreate(IAVIStream *iface, LPARAM lParam1,
 705                                           LPARAM lParam2)
 706 {
 707   TRACE("(%p,0x%08lX,0x%08lX)\n", iface, lParam1, lParam2);
 708
 709   /* This IAVIStream interface needs an WAVFile */
 710   return AVIERR_UNSUPPORTED;
 711 }
 712
 713 static HRESULT WINAPI IAVIStream_fnInfo(IAVIStream *iface,LPAVISTREAMINFOW psi,
 714                                         LONG size)
 715 {
 716   ICOM_THIS(IAVIStreamImpl,iface);
 717
 718   TRACE("(%p,%p,%ld)\n", iface, psi, size);
 719
 720   if (psi == NULL)
 721     return AVIERR_BADPARAM;
 722   if (size < 0)
 723     return AVIERR_BADSIZE;
 724
 725   memcpy(psi, &This->paf->sInfo, min((DWORD)size, sizeof(This->paf->sInfo)));
 726
 727   if ((DWORD)size < sizeof(This->paf->sInfo))
 728     return AVIERR_BUFFERTOOSMALL;
 729   return AVIERR_OK;
 730 }
 731
 732 static LONG WINAPI IAVIStream_fnFindSample(IAVIStream *iface, LONG pos,
 733                                            LONG flags)
 734 {
 735   IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;
 736
 737   TRACE("(%p,%ld,0x%08lX)\n",iface,pos,flags);
 738
 739   /* Do we have data? */
 740   if (This->lpFormat == NULL)
 741     return -1;
 742
 743   /* We don't have an index */
 744   if (flags & FIND_INDEX)
 745     return -1;
 746
 747   if (flags & FIND_FROM_START) {
 748     pos = This->sInfo.dwStart;
 749     flags &= ~(FIND_FROM_START|FIND_PREV);
 750     flags |= FIND_NEXT;
 751   }
 752
 753   if (flags & FIND_FORMAT) {
 754     if ((flags & FIND_NEXT) && pos > 0)
 755       pos = -1;
 756     else
 757       pos = 0;
 758   }
 759
 760   if ((flags & FIND_RET) == FIND_LENGTH ||
 761       (flags & FIND_RET) == FIND_SIZE)
 762     return This->sInfo.dwSampleSize;
 763   if ((flags & FIND_RET) == FIND_OFFSET)
 764     return This->ckData.dwDataOffset + pos * This->sInfo.dwSampleSize;
 765
 766   return pos;
 767 }
 768
 769 static HRESULT WINAPI IAVIStream_fnReadFormat(IAVIStream *iface, LONG pos,
 770                                               LPVOID format, LONG *formatsize)
 771 {
 772   ICOM_THIS(IAVIStreamImpl,iface);
 773
 774   TRACE("(%p,%ld,%p,%p)\n", iface, pos, format, formatsize);
 775
 776   if (formatsize == NULL)
 777     return AVIERR_BADPARAM;
 778
 779   /* only interested in needed buffersize? */
 780   if (format == NULL || *formatsize <= 0) {
 781     *formatsize = This->paf->cbFormat;
 782
 783     return AVIERR_OK;
 784   }
 785
 786   /* copy initial format (only as much as will fit) */
 787   memcpy(format, This->paf->lpFormat, min(*formatsize, This->paf->cbFormat));
 788   if (*formatsize < This->paf->cbFormat) {
 789     *formatsize = This->paf->cbFormat;
 790     return AVIERR_BUFFERTOOSMALL;
 791   }
 792
 793   *formatsize = This->paf->cbFormat;
 794   return AVIERR_OK;
 795 }
 796
 797 static HRESULT WINAPI IAVIStream_fnSetFormat(IAVIStream *iface, LONG pos,
 798                                              LPVOID format, LONG formatsize)
 799 {
 800   IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;
 801
 802   TRACE("(%p,%ld,%p,%ld)\n", iface, pos, format, formatsize);
 803
 804   /* check parameters */
 805   if (format == NULL || formatsize <= sizeof(PCMWAVEFORMAT))
 806     return AVIERR_BADPARAM;
 807
 808   /* We can only do this to an empty wave file, but ignore call
 809    * if still same format */
 810   if (This->lpFormat != NULL) {
 811     if (formatsize != This->cbFormat ||
 812         memcmp(format, This->lpFormat, formatsize) != 0)
 813       return AVIERR_UNSUPPORTED;
 814
 815     return AVIERR_OK;
 816   }
 817
 818   /* only support start at position 0 */
 819   if (pos != 0)
 820     return AVIERR_UNSUPPORTED;
 821
 822   /* Do we have write permission? */
 823   if ((This->uMode & MMIO_RWMODE) == 0)
 824     return AVIERR_READONLY;
 825
 826   /* get memory for format and copy it */
 827   This->lpFormat = (LPWAVEFORMATEX)GlobalAllocPtr(GMEM_MOVEABLE, formatsize);
 828   if (This->lpFormat == NULL)
 829     return AVIERR_MEMORY;
 830
 831   This->cbFormat = formatsize;
 832   memcpy(This->lpFormat, format, formatsize);
 833
 834   /* update info's about 'data' chunk */
 835   This->ckData.dwDataOffset = formatsize + 7 * sizeof(DWORD);
 836   This->ckData.cksize       = 0;
 837
 838   /* for non-pcm format we need also a 'fact' chunk */
 839   if (This->lpFormat->wFormatTag != WAVE_FORMAT_PCM)
 840     This->ckData.dwDataOffset += 3 * sizeof(DWORD);
 841
 842   /* update stream and file info */
 843   This->sInfo.dwSampleSize = This->lpFormat->nBlockAlign;
 844   This->sInfo.dwScale      = This->lpFormat->nBlockAlign;
 845   This->sInfo.dwRate       = This->lpFormat->nAvgBytesPerSec;
 846   This->sInfo.dwLength     = 0;
 847   This->sInfo.dwSuggestedBufferSize = 0;
 848
 849   return AVIERR_OK;
 850 }
 851
 852 static HRESULT WINAPI IAVIStream_fnRead(IAVIStream *iface, LONG start,
 853                                         LONG samples, LPVOID buffer,
 854                                         LONG buffersize, LPLONG bytesread,
 855                                         LPLONG samplesread)
 856 {
 857   IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;
 858
 859   TRACE("(%p,%ld,%ld,%p,%ld,%p,%p)\n", iface, start, samples, buffer,
 860         buffersize, bytesread, samplesread);
 861
 862   /* clear return parameters if given */
 863   if (bytesread != NULL)
 864     *bytesread = 0;
 865   if (samplesread != NULL)
 866     *samplesread = 0;
 867
 868   /* positions without data */
 869   if (start < 0 || (DWORD)start > This->sInfo.dwLength)
 870     return AVIERR_OK;
 871
 872   /* check samples */
 873   if (samples < 0)
 874     samples = 0;
 875   if (buffersize > 0) {
 876     if (samples > 0)
 877       samples = min((DWORD)samples, buffersize / This->sInfo.dwSampleSize);
 878     else
 879       samples = buffersize / This->sInfo.dwSampleSize;
 880   }
 881
 882   /* limit to end of stream */
 883   if ((DWORD)(start + samples) > This->sInfo.dwLength)
 884     samples = This->sInfo.dwLength - start;
 885
 886   /* request only the sizes? */
 887   if (buffer == NULL || buffersize <= 0) {
 888     /* then I need atleast one parameter for it */
 889     if (bytesread == NULL && samplesread == NULL)
 890       return AVIERR_BADPARAM;
 891
 892     if (bytesread != NULL)
 893       *bytesread = samples * This->sInfo.dwSampleSize;
 894     if (samplesread != NULL)
 895       *samplesread = samples;
 896
 897     return AVIERR_OK;
 898   }
 899
 900   /* nothing to read? */
 901   if (samples == 0)
 902     return AVIERR_OK;
 903
 904   /* Can I atleast read one sample? */
 905   if ((DWORD)buffersize < This->sInfo.dwSampleSize)
 906     return AVIERR_BUFFERTOOSMALL;
 907
 908   buffersize = samples * This->sInfo.dwSampleSize;
 909
 910   if (mmioSeek(This->hmmio, This->ckData.dwDataOffset
 911                + start * This->sInfo.dwSampleSize, SEEK_SET) == -1)
 912     return AVIERR_FILEREAD;
 913   if (mmioRead(This->hmmio, (HPSTR)buffer, buffersize) != buffersize)
 914     return AVIERR_FILEREAD;
 915
 916   /* fill out return parameters if given */
 917   if (bytesread != NULL)
 918     *bytesread = buffersize;
 919   if (samplesread != NULL)
 920     *samplesread = samples;
 921
 922   return AVIERR_OK;
 923 }
 924
 925 static HRESULT WINAPI IAVIStream_fnWrite(IAVIStream *iface, LONG start,
 926                                          LONG samples, LPVOID buffer,
 927                                          LONG buffersize, DWORD flags,
 928                                          LPLONG sampwritten,
 929                                          LPLONG byteswritten)
 930 {
 931   IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;
 932
 933   TRACE("(%p,%ld,%ld,%p,%ld,0x%08lX,%p,%p)\n", iface, start, samples,
 934         buffer, buffersize, flags, sampwritten, byteswritten);
 935
 936   /* clear return parameters if given */
 937   if (sampwritten != NULL)
 938     *sampwritten = 0;
 939   if (byteswritten != NULL)
 940     *byteswritten = 0;
 941
 942   /* check parameters */
 943   if (buffer == NULL && (buffersize > 0 || samples > 0))
 944     return AVIERR_BADPARAM;
 945
 946   /* Have we write permission? */
 947   if ((This->uMode & MMIO_RWMODE) == 0)
 948     return AVIERR_READONLY;
 949
 950   /* < 0 means "append" */
 951   if (start < 0)
 952     start = This->sInfo.dwStart + This->sInfo.dwLength;
 953
 954   /* check buffersize -- must multiple of samplesize */
 955   if (buffersize & ~(This->sInfo.dwSampleSize - 1))
 956     return AVIERR_BADSIZE;
 957
 958   /* have we anything to write? */
 959   if (buffer != NULL && buffersize > 0) {
 960     This->fDirty = 1;
 961
 962     if (mmioSeek(This->hmmio, This->ckData.dwDataOffset +
 963                  start * This->sInfo.dwSampleSize, SEEK_SET) == -1)
 964       return AVIERR_FILEWRITE;
 965     if (mmioWrite(This->hmmio, (HPSTR)buffer, buffersize) != buffersize)
 966       return AVIERR_FILEWRITE;
 967
 968     This->sInfo.dwLength = max(This->sInfo.dwLength, (DWORD)start + samples);
 969     This->ckData.cksize  = max(This->ckData.cksize,
 970                                start * This->sInfo.dwSampleSize + buffersize);
 971
 972     /* fill out return parameters if given */
 973     if (sampwritten != NULL)
 974       *sampwritten = samples;
 975     if (byteswritten != NULL)
 976       *byteswritten = buffersize;
 977   }
 978
 979   return AVIERR_OK;
 980 }
 981
 982 static HRESULT WINAPI IAVIStream_fnDelete(IAVIStream *iface, LONG start,
 983                                           LONG samples)
 984 {
 985   IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;
 986
 987   TRACE("(%p,%ld,%ld)\n", iface, start, samples);
 988
 989   /* check parameters */
 990   if (start < 0 || samples < 0)
 991     return AVIERR_BADPARAM;
 992
 993   /* Delete before start of stream? */
 994   if ((DWORD)(start + samples) < This->sInfo.dwStart)
 995     return AVIERR_OK;
 996
 997   /* Delete after end of stream? */
 998   if ((DWORD)start > This->sInfo.dwLength)
 999     return AVIERR_OK;
1000
1001   /* For the rest we need write permissions */
1002   if ((This->uMode & MMIO_RWMODE) == 0)
1003     return AVIERR_READONLY;
1004
1005   if ((DWORD)(start + samples) >= This->sInfo.dwLength) {
1006     /* deletion at end */
1007     samples = This->sInfo.dwLength - start;
1008     This->sInfo.dwLength -= samples;
1009     This->ckData.cksize  -= samples * This->sInfo.dwSampleSize;
1010   } else if ((DWORD)start <= This->sInfo.dwStart) {
1011     /* deletion at start */
1012     samples = This->sInfo.dwStart - start;
1013     start   = This->sInfo.dwStart;
1014     This->ckData.dwDataOffset += samples * This->sInfo.dwSampleSize;
1015     This->ckData.cksize       -= samples * This->sInfo.dwSampleSize;
1016   } else {
1017     /* deletion inside stream -- needs playlist and cue's */
1018     FIXME(": deletion inside of stream not supported!\n");
1019
1020     return AVIERR_UNSUPPORTED;
1021   }
1022
1023   This->fDirty = 1;
1024
1025   return AVIERR_OK;
1026 }
1027
1028 static HRESULT WINAPI IAVIStream_fnReadData(IAVIStream *iface, DWORD fcc,
1029                                             LPVOID lp, LPLONG lpread)
1030 {
1031   ICOM_THIS(IAVIStreamImpl,iface);
1032
1033   assert(This->paf != NULL);
1034
1035   return IAVIFile_ReadData((PAVIFILE)This->paf, fcc, lp, lpread);
1036 }
1037
1038 static HRESULT WINAPI IAVIStream_fnWriteData(IAVIStream *iface, DWORD fcc,
1039                                              LPVOID lp, LONG size)
1040 {
1041   ICOM_THIS(IAVIStreamImpl,iface);
1042
1043   return IAVIFile_WriteData((PAVIFILE)This->paf, fcc, lp, size);
1044 }
1045
1046 static HRESULT WINAPI IAVIStream_fnSetInfo(IAVIStream *iface,
1047                                            LPAVISTREAMINFOW info, LONG infolen)
1048 {
1049   FIXME("(%p,%p,%ld): stub\n", iface, info, infolen);
1050
1051   return E_FAIL;
1052 }
1053
1054 /***********************************************************************/
1055
1056 static HRESULT AVIFILE_LoadFile(IAVIFileImpl *This)
1057 {
1058   MMCKINFO ckRIFF;
1059   MMCKINFO ck;
1060
1061   This->sInfo.dwLength = 0; /* just to be sure */
1062   This->fDirty = FALSE;
1063
1064   /* search for RIFF chunk */
1065   ckRIFF.fccType = 0; /* find any */
1066   if (mmioDescend(This->hmmio, &ckRIFF, NULL, MMIO_FINDRIFF) != S_OK) {
1067     return AVIFILE_LoadSunFile(This);
1068   }
1069
1070   if (ckRIFF.fccType != formtypeWAVE)
1071     return AVIERR_BADFORMAT;
1072
1073   /* search WAVE format chunk */
1074   ck.ckid = ckidWAVEFORMAT;
1075   if (FindChunkAndKeepExtras(&This->extra, This->hmmio, &ck,
1076                              &ckRIFF, MMIO_FINDCHUNK) != S_OK)
1077     return AVIERR_FILEREAD;
1078
1079   /* get memory for format and read it */
1080   This->lpFormat = (LPWAVEFORMATEX)GlobalAllocPtr(GMEM_MOVEABLE, ck.cksize);
1081   if (This->lpFormat == NULL)
1082     return AVIERR_FILEREAD;
1083   This->cbFormat = ck.cksize;
1084
1085   if (mmioRead(This->hmmio, (HPSTR)This->lpFormat, ck.cksize) != ck.cksize)
1086     return AVIERR_FILEREAD;
1087   if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
1088     return AVIERR_FILEREAD;
1089
1090   /* Non-pcm formats have a fact chunk.
1091    * We don't need it, so simply add it to the extra chunks.
1092    */
1093
1094   /* find the big data chunk */
1095   This->ckData.ckid = ckidWAVEDATA;
1096   if (FindChunkAndKeepExtras(&This->extra, This->hmmio, &This->ckData,
1097                              &ckRIFF, MMIO_FINDCHUNK) != S_OK)
1098     return AVIERR_FILEREAD;
1099
1100   memset(&This->sInfo, 0, sizeof(This->sInfo));
1101   This->sInfo.fccType      = streamtypeAUDIO;
1102   This->sInfo.dwRate       = This->lpFormat->nAvgBytesPerSec;
1103   This->sInfo.dwSampleSize =
1104     This->sInfo.dwScale    = This->lpFormat->nBlockAlign;
1105   This->sInfo.dwLength     = This->ckData.cksize / This->lpFormat->nBlockAlign;
1106   This->sInfo.dwSuggestedBufferSize = This->ckData.cksize;
1107
1108   This->fInfo.dwStreams = 1;
1109
1110   if (mmioAscend(This->hmmio, &This->ckData, 0) != S_OK) {
1111     /* seems to be truncated */
1112     WARN(": file seems to be truncated!\n");
1113     This->ckData.cksize  = mmioSeek(This->hmmio, 0, SEEK_END) -
1114       This->ckData.dwDataOffset;
1115     This->sInfo.dwLength = This->ckData.cksize / This->lpFormat->nBlockAlign;
1116     This->sInfo.dwSuggestedBufferSize = This->ckData.cksize;
1117   }
1118
1119   /* ignore errors */
1120   FindChunkAndKeepExtras(&This->extra, This->hmmio, &ck, &ckRIFF, 0);
1121
1122   return AVIERR_OK;
1123 }
1124
1125 static HRESULT AVIFILE_LoadSunFile(IAVIFileImpl *This)
1126 {
1127   SUNAUDIOHEADER auhdr;
1128
1129   mmioSeek(This->hmmio, 0, SEEK_SET);
1130   if (mmioRead(This->hmmio, (HPSTR)&auhdr, sizeof(auhdr)) != sizeof(auhdr))
1131     return AVIERR_FILEREAD;
1132
1133   if (auhdr.fccType == 0x0064732E) {
1134     /* header in little endian */
1135     This->ckData.dwDataOffset = LE2H_DWORD(auhdr.offset);
1136     This->ckData.cksize       = LE2H_DWORD(auhdr.size);
1137
1138     auhdr.encoding   = LE2H_DWORD(auhdr.encoding);
1139     auhdr.sampleRate = LE2H_DWORD(auhdr.sampleRate);
1140     auhdr.channels   = LE2H_DWORD(auhdr.channels);
1141   } else if (auhdr.fccType == mmioFOURCC('.','s','n','d')) {
1142     /* header in big endian */
1143     This->ckData.dwDataOffset = BE2H_DWORD(auhdr.offset);
1144     This->ckData.cksize       = BE2H_DWORD(auhdr.size);
1145
1146     auhdr.encoding   = BE2H_DWORD(auhdr.encoding);
1147     auhdr.sampleRate = BE2H_DWORD(auhdr.sampleRate);
1148     auhdr.channels   = BE2H_DWORD(auhdr.channels);
1149   } else
1150     return AVIERR_FILEREAD;
1151
1152   if (auhdr.channels < 1)
1153     return AVIERR_BADFORMAT;
1154
1155   /* get size of header */
1156   switch(auhdr.encoding) {
1157   case AU_ENCODING_ADPCM_G721_32:
1158     This->cbFormat = sizeof(G721_ADPCMWAVEFORMAT); break;
1159   case AU_ENCODING_ADPCM_G723_24:
1160     This->cbFormat = sizeof(G723_ADPCMWAVEFORMAT); break;
1161   case AU_ENCODING_ADPCM_G722:
1162   case AU_ENCODING_ADPCM_G723_5:
1163     WARN("unsupported Sun audio format %d\n", auhdr.encoding);
1164     return AVIERR_UNSUPPORTED; /* FIXME */
1165   default:
1166     This->cbFormat = sizeof(WAVEFORMATEX); break;
1167   };
1168
1169   This->lpFormat =
1170     (LPWAVEFORMATEX)GlobalAllocPtr(GMEM_MOVEABLE, This->cbFormat);
1171   if (This->lpFormat == NULL)
1172     return AVIERR_MEMORY;
1173
1174   This->lpFormat->nChannels      = auhdr.channels;
1175   This->lpFormat->nSamplesPerSec = auhdr.sampleRate;
1176   switch(auhdr.encoding) {
1177   case AU_ENCODING_ULAW_8:
1178     This->lpFormat->wFormatTag     = WAVE_FORMAT_MULAW;
1179     This->lpFormat->wBitsPerSample = 8;
1180     break;
1181   case AU_ENCODING_PCM_8:
1182     This->lpFormat->wFormatTag     = WAVE_FORMAT_PCM;
1183     This->lpFormat->wBitsPerSample = 8;
1184     break;
1185   case AU_ENCODING_PCM_16:
1186     This->lpFormat->wFormatTag     = WAVE_FORMAT_PCM;
1187     This->lpFormat->wBitsPerSample = 16;
1188     break;
1189   case AU_ENCODING_PCM_24:
1190     This->lpFormat->wFormatTag     = WAVE_FORMAT_PCM;
1191     This->lpFormat->wBitsPerSample = 24;
1192     break;
1193   case AU_ENCODING_PCM_32:
1194     This->lpFormat->wFormatTag     = WAVE_FORMAT_PCM;
1195     This->lpFormat->wBitsPerSample = 32;
1196     break;
1197   case AU_ENCODING_ALAW_8:
1198     This->lpFormat->wFormatTag     = WAVE_FORMAT_ALAW;
1199     This->lpFormat->wBitsPerSample = 8;
1200     break;
1201   case AU_ENCODING_ADPCM_G721_32:
1202     This->lpFormat->wFormatTag     = WAVE_FORMAT_G721_ADPCM;
1203     This->lpFormat->wBitsPerSample = (3*5*8);
1204     This->lpFormat->nBlockAlign    = 15*15*8;
1205     This->lpFormat->cbSize         = sizeof(WORD);
1206     ((LPG721_ADPCMWAVEFORMAT)This->lpFormat)->nAuxBlockSize = 0;
1207     break;
1208   case AU_ENCODING_ADPCM_G723_24:
1209     This->lpFormat->wFormatTag     = WAVE_FORMAT_G723_ADPCM;
1210     This->lpFormat->wBitsPerSample = (3*5*8);
1211     This->lpFormat->nBlockAlign    = 15*15*8;
1212     This->lpFormat->cbSize         = 2*sizeof(WORD);
1213     ((LPG723_ADPCMWAVEFORMAT)This->lpFormat)->cbExtraSize   = 0;
1214     ((LPG723_ADPCMWAVEFORMAT)This->lpFormat)->nAuxBlockSize = 0;
1215     break;
1216   default:
1217     WARN("unsupported Sun audio format %d\n", auhdr.encoding);
1218     return AVIERR_UNSUPPORTED;
1219   };
1220
1221   This->lpFormat->nBlockAlign =
1222     (This->lpFormat->nChannels * This->lpFormat->wBitsPerSample) / 8;
1223   if (This->lpFormat->nBlockAlign == 0 && This->lpFormat->wBitsPerSample < 8)
1224     This->lpFormat->nBlockAlign++;
1225   This->lpFormat->nAvgBytesPerSec =
1226     This->lpFormat->nBlockAlign * This->lpFormat->nSamplesPerSec;
1227
1228   This->fDirty = 0;
1229
1230   This->sInfo.fccType               = streamtypeAUDIO;
1231   This->sInfo.fccHandler            = 0;
1232   This->sInfo.dwFlags               = 0;
1233   This->sInfo.wPriority             = 0;
1234   This->sInfo.wLanguage             = 0;
1235   This->sInfo.dwInitialFrames       = 0;
1236   This->sInfo.dwScale               = This->lpFormat->nBlockAlign;
1237   This->sInfo.dwRate                = This->lpFormat->nAvgBytesPerSec;
1238   This->sInfo.dwStart               = 0;
1239   This->sInfo.dwLength              =
1240     This->ckData.cksize / This->lpFormat->nBlockAlign;
1241   This->sInfo.dwSuggestedBufferSize = This->sInfo.dwLength;
1242   This->sInfo.dwSampleSize          = This->lpFormat->nBlockAlign;
1243
1244   This->fInfo.dwStreams = 1;
1245   This->fInfo.dwScale   = 1;
1246   This->fInfo.dwRate    = This->lpFormat->nSamplesPerSec;
1247   This->fInfo.dwLength  =
1248     MulDiv(This->ckData.cksize, This->lpFormat->nSamplesPerSec,
1249            This->lpFormat->nAvgBytesPerSec);
1250
1251   return AVIERR_OK;
1252 }
1253
1254 static HRESULT AVIFILE_SaveFile(IAVIFileImpl *This)
1255 {
1256   MMCKINFO ckRIFF;
1257   MMCKINFO ck;
1258
1259   mmioSeek(This->hmmio, 0, SEEK_SET);
1260
1261   /* create the RIFF chunk with formtype WAVE */
1262   ckRIFF.fccType = formtypeWAVE;
1263   ckRIFF.cksize  = 0;
1264   if (mmioCreateChunk(This->hmmio, &ckRIFF, MMIO_CREATERIFF) != S_OK)
1265     return AVIERR_FILEWRITE;
1266
1267   /* the next chunk is the format */
1268   ck.ckid   = ckidWAVEFORMAT;
1269   ck.cksize = This->cbFormat;
1270   if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
1271     return AVIERR_FILEWRITE;
1272   if (This->lpFormat != NULL && This->cbFormat > 0) {
1273     if (mmioWrite(This->hmmio, (HPSTR)This->lpFormat, ck.cksize) != ck.cksize)
1274       return AVIERR_FILEWRITE;
1275   }
1276   if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
1277     return AVIERR_FILEWRITE;
1278
1279   /* fact chunk is needed for non-pcm waveforms */
1280   if (This->lpFormat != NULL && This->cbFormat > sizeof(PCMWAVEFORMAT) &&
1281       This->lpFormat->wFormatTag != WAVE_FORMAT_PCM) {
1282     WAVEFORMATEX wfx;
1283     DWORD        dwFactLength;
1284     HACMSTREAM   has;
1285
1286     /* try to open an appropriate audio codec to figure out
1287      * data for fact-chunk */
1288     wfx.wFormatTag = WAVE_FORMAT_PCM;
1289     if (acmFormatSuggest(NULL, This->lpFormat, &wfx,
1290                          sizeof(wfx), ACM_FORMATSUGGESTF_WFORMATTAG)) {
1291       acmStreamOpen(&has, NULL, This->lpFormat, &wfx, NULL,
1292                     0, 0, ACM_STREAMOPENF_NONREALTIME);
1293       acmStreamSize(has, This->ckData.cksize, &dwFactLength,
1294                     ACM_STREAMSIZEF_SOURCE);
1295       dwFactLength /= wfx.nBlockAlign;
1296       acmStreamClose(has, 0);
1297
1298       /* crete the fact chunk */
1299       ck.ckid   = ckidWAVEFACT;
1300       ck.cksize = sizeof(dwFactLength);
1301
1302       /* test for enough space before data chunk */
1303       if (mmioSeek(This->hmmio, 0, SEEK_CUR) > This->ckData.dwDataOffset
1304           - ck.cksize - 4 * sizeof(DWORD))
1305         return AVIERR_FILEWRITE;
1306       if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
1307         return AVIERR_FILEWRITE;
1308       if (mmioWrite(This->hmmio, (HPSTR)&dwFactLength, ck.cksize) != ck.cksize)
1309         return AVIERR_FILEWRITE;
1310       if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
1311         return AVIERR_FILEWRITE;
1312     } else
1313       ERR(": fact chunk is needed for non-pcm files -- currently no codec found, so skipped!\n");
1314   }
1315
1316   /* if here was extra stuff, we need to fill it with JUNK */
1317   if (mmioSeek(This->hmmio, 0, SEEK_CUR) + 2 * sizeof(DWORD) < This->ckData.dwDataOffset) {
1318     ck.ckid   = ckidAVIPADDING;
1319     ck.cksize = 0;
1320     if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
1321       return AVIERR_FILEWRITE;
1322
1323     if (mmioSeek(This->hmmio, This->ckData.dwDataOffset
1324                  - 2 * sizeof(DWORD), SEEK_SET) == -1)
1325       return AVIERR_FILEWRITE;
1326     if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
1327       return AVIERR_FILEWRITE;
1328   }
1329
1330   /* crete the data chunk */
1331   ck.ckid   = ckidWAVEDATA;
1332   ck.cksize = This->ckData.cksize;
1333   if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
1334     return AVIERR_FILEWRITE;
1335   if (mmioSeek(This->hmmio, This->ckData.cksize, SEEK_CUR) == -1)
1336     return AVIERR_FILEWRITE;
1337   if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
1338     return AVIERR_FILEWRITE;
1339
1340   /* some optional extra chunks? */
1341   if (This->extra.lp != NULL && This->extra.cb > 0) {
1342     /* chunk headers are already in structure */
1343     if (mmioWrite(This->hmmio, This->extra.lp, This->extra.cb) != This->extra.cb)
1344       return AVIERR_FILEWRITE;
1345   }
1346
1347   /* close RIFF chunk */
1348   if (mmioAscend(This->hmmio, &ckRIFF, 0) != S_OK)
1349     return AVIERR_FILEWRITE;
1350   if (mmioFlush(This->hmmio, 0) != S_OK)
1351     return AVIERR_FILEWRITE;
1352
1353   return AVIERR_OK;
1354 }